Leathee



(No Model.)

A. `PR0BST. MAGHINB FOR; WORKING LEATHER. No. 489,641. Patented Jan. 10,1893.

@uffici-11,636'.

Unirse rares are:

FFICE@ ADAM PROBST, OF WORMS, GERMANY, ASSIGNOR TO DOERR do REINHART, OFSAME PLACE.

MACHENE FR WORKING LEATHER.

SLECIFICATION forming part of Letters Patent No. 489,641, dated January10, 1893. Application led August 26, 1892. Serial No. 444,226. (Nomodel.)

To all whom z't may concern:

Be it known that I, ADAM PROBsT, a subject of the Grand Duke of Hesse,residing at Vorms, in the Grand Duchy of Hesse, Germany, have inventednew and useful Improvements in Machines for Working Leather, of whichthe following is a specification.

The construction of the machine is illustrated in the accompanyingdrawings.

Figure l is a general View of the machine, while the Figs. 2 and 3 showon a larger scale the arrangement of the movable bracket in which thetool-holder is disposed'.

As represented in Fig. 1 a frame A arranged in the midst behind thetables T carries the mechanism actuating the machine. A horizontal shaftB revolved from outside, transmits its motion by means of a pair ofconical toothed wheels or of friction-wheels to the vertical shaft D. Onthis shaft D are movable and turn the horizontal arms F and F', thelatter of which carries on its free front end a peculiar bracket and inthis bracket is the working shaft. The horizontal arms F F whichpreferably have the form of lattice holders, carry the mechanism fortransmitting the movement to the tool-holder; to the upper end of shaftD is fastened the pulley E from which passes an endless belt, cord orchain to the pulley H secured to the rotatable shaft G arranged betweenthe two arms F F from the shaft G the revolving movement is transmittedby means of the pulleys H and F to the working shaft L. The shaft Lcarrying the tool is not only adapted to revolve and to be moved up anddown, but it must also be possible to displace it laterally. For thispurpose the shaft carrying the working head is not arranged directly inthe front end of arm F', but in a peculiar bracket K connected by thebolt M with the end of arm F as shown in Fig. 3. The bracket is loose onits bolt M passed through the eye N provided with a sector-shaped recess(see Fig. 2) into which enters a projection n arranged on the under-sideof the bolt M so as to have still sufficient play; this lateral playdetermines the stroke of the bracket and in consequence also that of theshaft L. The shaft L has cut into it a long groove Z so as to be movableat will on the wedge of its driving pulley. By means of adjusting ringsit is held in the required height.

In the lower part of Figs. 2 and 3 is illustrated the manner ofattaching the tool to the shaft. According as the machine has to servefor polishing blacking, grounding, dyeing dac. leather, the threaded endof the shaft is secured in the suitable tool-holder WV. carrying therubber, brush, dto. The weight of the tool is compensated by spiralsprings S arranged about the rods S extending vertically on each side ofthe shaft through projections X on the lower bearing X of the bracket.The lower pulley .I on the vertical shaft L is arranged between the twobearings XX3 of the bracket. The handle is swiveled at 4 to the shaft L.

It will readily be understood, that the workman in guiding the head bythe handles UU can easily arrive, owing to the arms F and F movableround the driving shaft D and also with respect to each other, to anypoint of the working table and treat anywhere easily the work-piece.

1. In combination, the swinging frame, the bolt M extending horizontallythrough the end of said frame, the bracket K swiveled on the said bolt,the bearin gs on the said bracket arranged one above the other, the toolshaft L passing loosely through the said bearings, and the pulley .I onthe said vertical shaft between two of the bracketbearings,substantiallyas described.

2. In combination, the swinging frame, the bolt M arranged horizontallyin the end of the frame and having a projection a, the bracket K havinga recessed eye N arranged to swivel on the bolt and have limited lateralmovement, the bearings on the bracket arranged one above the other, thevertical tool shaft passing through the bracket bearings and the pulleyon the vertical shaft between the bearings, substantially as described.

3. In combination, the swinging frame, the bracket swiveled at the endthereof to have lateral swinging movement, the vertical tool shaftpassingloosely through the said bracket In testimony whereof I havesigned my to have Vertical adjustment, the handles swivname to thisspecification in the presence o lo eled on the lower part of the saidshaft, the two subscribing Witnesses. spring rod extending on each sideof the shaf t n 5 from the handles through projections 011 the ADAMPROBST.

bracket and the springs S on said rods tend- Witnesses: ing normally toraise the handles, substan- GEORG VAL KAHL, tally as described. GEORGBERTGEs.

